BOOLEAN Algebra was developed by George Boole (1815- 1864), an English mathematician and logician.

The credit for applying the laws of Boolean algebra goes to Claude. E. Shannon, an electrical engineer. Claude. E. Shannon in the year 1938, suggested that Boolean algebra can be applied to problems arising in telephone switching circuits and for this reason Boolean algebra is also known as Switching Algebra.

The other noteworthy persons to realise the significance of this algebra were *August De- Morgan, Alfred North -White Head *and *Beltrand** Russell**.*